First, chopping and chopping is the simplest and most important method to prepare straw. All straws and older hay should be chopped before feeding. After chopping, it can not only reduce the energy consumption when chewing feed, but also reduce the waste of feed, and it is easy to use with Other feeds to increase feed intake. The degree of chopping of straw should depend on the type and age of the livestock. The straw for feeding cattle can be slightly longer, usually 3~4 cm, 2~3 cm for horses, donkeys and donkeys, 1.5~2.5 cm for sheep, and younger and younger animals should be shorter.
Second, the purpose of crushing straw smash is to improve the digestibility. The fineness of the pulverization is generally 0.7 to 1.0 cm. But it should not be shredded too thin. If it is too fine, the livestock chews incompletely, the saliva can not be fully mixed, the horse is prone to sputum pain, the cattle and sheep are easy to cause stagnation, and accelerate the feed through the rumen speed, the crude material in the rumen stay time is shortened, the fermentation is not complete, it will reduce the digestion of straw rate.
Third, the soaking immersion method is to add the chopped straw to the water and mix it with the concentrate. This method is a commonly used straw modulation method in rural China. The straw after soaking softens, improves the palatability, and the concentrate is easy to stick in the straw, which can improve the straw utilization rate.
4. Rolling the wheat straw on the threshing floor, 30~40 cm thick, and then laying 30~40 cm fresh green alfalfa on the upper side, and then adding a layer of wheat straw of the same thickness on the alfalfa, then crushing with stone . The alfalfa crushed outflow juice is absorbed by the wheat straw. The flattened cockroaches can dry out in 12~24 hours on hot days. The invention has the advantages that the hay can be made faster, the drying speed of the stems and leaves is uniform, the loss of the leaves is reduced, and the palatability and nutritional value of the wheat straw are improved.
5. Cooking and cooking can improve the palatability of straw and soften cellulose. Often used to feed breeding pigs, fattening cattle and low-yielding dairy cows. The cooking temperature was 90 ° C, and after 1 hour, it was placed in the box for 2 to 3 hours. In addition, straw can be used to feed mature grass to cattle. The method is to add a small amount of bean cake and salt to the chopped straw, cook in a large pot, boil for 30 seconds to stop, and then take out the cow after cooling. Or mix the chopped straw with the carrots, put them into the iron pot (the lower layer of the snorkel, the hole on the trachea), cover the sack, steam from the trachea for 20~30 seconds, after 5~6 hours Take out the feeding cattle, the daily feeding amount is equivalent to 4~4.5 kg of dry straw. Good feeding effect can increase the amount of lactation.
Sixth, the preparation of straw pulp with grass crops to prepare straw pulp, can improve palatability, easy to digest, suitable for feeding fattening pigs. Modulation method, cut the straw into 2~3 cm long, add 5 kg of lime powder per 100 kg of straw, add water and mix well, add 6~7 kg of water after boiling, cook for another hour, rinse and rinse with water. Put it into the beater and beat it at a speed of 220 rpm for 80 seconds.
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